Mechanical Halloween Props & 3D Printer Fun

It's the Guru Brew Halloween Special.
Today we look at some mechanically powered mechanisms that can be used to automate Halloween Prop and other special effects. Many methods of powering our prop are available when we are building and designing animations such as pneumatic, motors, gears pulleys, servo motor, stepper motors. No matter what power source we end up using, the projects success depends on matching the proper linkage and techniques to the specific task.
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[@CharChar876]

That noise maker I can visualize an alligator head attached to it. Neat!

[@ThePizzaByte]

That sure showed Dracula and his friend! Always fun watching your videos :D I can tell you now half those contraptions would scare the heck out of me back when I went trick or treating haha

[@drkdve]

Love it. So many potential applications.

[@jameskappel]

enjoy watching you make gadgets

[@jjohnson71958]

Upgrade that cooling fan that keeps the 3d printer head from melting to a server grade cooling fan (faster server cooling fan)